Garmin inReach Plan Cost Calculator

An online calculator that computes the cost of inReach plans based on how many messages and tracking points you use.

August 25, 2023

Fixing the connector on a Deuter/Source hydration pack

Source/Deuter 3L hydration bladder If you have a hydration bladder made by Source (or Deuter, which are re-badged Source hydration bladders), you may have run into an issue with the hose becoming harder and harder to insert into the bladder, or with a leak in the connection. It is very likely that your problem is with the O-ring at the end of the hose, and that replacing the O-ring will fix the issue....

July 31, 2023

Debian Repository HOWTO

I don’t maintain the Debian Repository HOWTO any more. It is deprecated and should not be followed, as there are many better ways and better tools to create a debian repository as of 2023.

July 14, 2023

Learning C++

I don’t maintain the “Learning C++” book any more. It is very much out of date (I haven’t updated it since 2003) and you should look elsewhere if you want to learn C++.

July 14, 2023

C++ dlopen mini HOWTO

I don’t maintain the C++ dlopen mini HOWTO any more. I last updated it in 2006, so there are likely better ways to do what you want to achieve by now. You can find a copy at .

July 14, 2023

Garmin Edge bicycle computer release timeline

This is the timeline of the release dates of all Garmin Edge bicycle computers in the 500, 800 and 1000 Series, from 2010 (Edge 500) to 2023 (540/840). These three series have been the backbone of Garmin’s bicycle offerings since 2010. This may be useful if you want to estimate when a particular computer will be refreshed. On the different series/models The 500, 800 and 1000 series are different physical devices, but they run almost identical software....

July 23, 2021 · Last updated July 1, 2023

Lincoln PowerMig 210MP power cord replacement

What you need to know to build your own welder cord for the Lincoln PowerMig 210MP. Note: this is by no means a complete guide to wiring a welder (or any tool). Follow these instructions at your own risk. The Lincoln PowerMig 210 MP welder has a terrible 220V power cord. It is too short, very stiff, and if you’re a hobbyist you probably don’t want the gigantic 6-50 plug but something more suitable, so that you don’t need a bunch of adapters or an extension cord the size of a garden hose....

November 16, 2020

Cycleops Magnus Trainer User Guide

The cycleops magnus trainer user guide PDF , for posterity.

May 30, 2017

Images to C arrays for the Newhaven NHD-C12832A1Z-FSW-FBW-3V3 LCD

If you are using the NHD-C12832A1Z-FSW-FBW-3V3 LCD, or another LCD based on the ST7565R chip, you may have ran into the issue of converting image data into a format suitable for sending to the display. It’s a bit strange because the display is addressed using a page/column scheme, with each byte representing a slice of 8 vertical bits. This python script does the necessary conversion. It reads an image and outputs a C array that you can paste into your program....

April 15, 2016

Australia trip 2014/2015

January 15, 2015